A Chinese University of Hong Kong (CUHK) student arrested on suspicion of sedition after launching a petition calling for an independent committee to investigate the Tai Po fire has said he has been expelled. “I was just expelled by CUHK,” Miles Kwan Ching-fung wrote on social media at midnight on Thursday, ending his post with a thumbs-up emoji. He said he had been suspended twice and had studied only intermittently over the past six years. Kwan, 24, told the South China Morning Post on Friday...